The Collaborative International Dictionary of English v.0.48:

Deprisure \De*pri"sure\, n. [F. d['e]priser to undervalue; pref.
   d['e]- (L. dis-) + priser to prize, fr. prix price, fr. L.
   pretium. See Dispraise.]
   Low estimation; disesteem; contempt. [Obs.]
   [1913 Webster]